Kate Chastain, star of Below Deck, in a bikini at 11 weeks pregnant

Bikini retrospective! Below Deck star Kate Chastain, 40, is seen in a two-piece when she was 11 weeks pregnant and says her ‘boobs were amazing’

Below Deck star Kate Chastain shared some throwback photos on Instagram on Monday.

The 40-year-old reality vixen was seen wearing a bright orange bikini as she walked out of the ocean on a white sandy beach.

The yachting maven made her alluring curves speak for themselves as her chest looked generous and her tummy flat.

But the beauty was already pregnant with her first child.

In her caption, the star, who debuted her baby bump in December, explained that the pictures were taken when she was 11 weeks old and her chest had already increased in size.

Beauty on the beach: Below Deck star Kate Chastain shared some throwback photos on Instagram on Monday

“This was 11 weeks pregnant (right before BravoCon!) before anyone knew but my boobs were amazing so I’m posting now,” the blonde wrote in her caption.

Chastain was last seen in mid-December during her first red carpet appearance since announcing her pregnancy.

He attended a press event with the cast of Peacock’s upcoming reality series, The Traitors.

Ahead of the launch of her new reality competition, in which celebrities and civilians team up to win cash prizes of up to $250,000 while staying at a remote castle in Scotland, the 39-year-old reality star cradled her stomach with pride.

She posed with Brandi Glanville, Kyle Cooke and Reza Farahan.

Walk on the wild side: The 40-year-old reality TV vixen was spotted in a bright orange bikini as she walked out of the ocean on a pristine white sand beach

Walk on the wild side: The 40-year-old reality TV vixen was spotted in a bright orange bikini as she walked out of the ocean on a pristine white sand beach

Early days of pregnancy: The yachting maven made her alluring curves speak for themselves as her chest looked generous and her tummy flat.

Early days of pregnancy: The yachting maven made her alluring curves speak for themselves as her chest looked generous and her tummy flat.

The Florida native, whose baby girl is due on May 8, accessorized her chic ensemble with a diamond choker, a silver heart necklace, and a pair of black booties.

For the occasion, she rocked her shoulder-length golden blonde hair in loose waves and rocked bright nude lipstick.

Meanwhile, Glanville put on a leggy display in a thigh-skimming red dress and a pair of peep-toe silver heels.

The cast of The Traitors also includes Arie Luyendyk Jr., Cirie Fields, Cody Calafiore, Rachel Reilly, Ryan Lochte, and Stephenie LaGrossa Kendrick.

Mom-to-be: Chastain debuted her bump in December while attending an event with the cast of a new reality series The Traitors

Mom-to-be: Chastain debuted her bump in December while attending an event with the cast of a new reality series The Traitors

Baby on board: The Florida native, whose baby girl is due May 8, accessorized her chic ensemble with a diamond choker, a silver heart necklace, and a pair of black booties

Baby on board: The Florida native, whose baby girl is due May 8, accessorized her chic ensemble with a diamond choker, a silver heart necklace, and a pair of black booties

Discussing her pregnancy on Watch What Happens Live With Andy Cohen, Chastain revealed that she would be a mother “on her own and maybe with some help.”

“I’m happy to do it alone,” she gushed. “I think being a chef really trained me for that.”

Cohen then suggested that he might get some advice from the 50-year-old Glanville.

“She’s already given me parenting advice and it’s great, glowing advice,” Chastain said. “I am so grateful to have Brandi as a parent coach.”

For now, she’s keeping her baby’s gender a secret, but she hinted that her little one will have a ‘last name’.

Her new show: Seen with a blazer and skirt in the new series The Traitors

Her new show: Seen with a blazer and skirt in the new series The Traitors